In biology, the BBCH-scale for other brassica vegetables describes the phenological development of vegetables such as brussels sprouts, cauliflower and broccoli using the BBCH-scale.
The phenological growth stages and BBCH-identification keys of other brassica vegetables are:
Growth stageCodeDescription0: Germination00 Dry seed01 Beginning of seed imbibition03 Seed imbibition complete05 Radicle emerged from seed07 Hypocotyl with cotyledons breaking through seed coat09 Emergence: cotyledons break through soil surface1: Leaf development (Main shoot)10 Cotyledons completely unfolded; growing point or true leaf initial visible11 First true leaf unfolded12 2nd true leaf unfolded13 3rd true leaf unfolded1 . Stages continuous till ...19 9 or more true leaves unfolded2: Formation of side shoots21 First side shoot visible122 2nd side shoot visible123 3rd side shoot visible12 . Stages continuous till ...29 9 or more side shoots visible13: Stem elongation of rosette growth31 Main shoot has reached 10% of the expected height typical for the variety232 Main shoot has reached 20% of the expected height typical for the variety233 Main shoot has reached 30% of the expected height typical for the variety234 Main shoot has reached 40% of the expected height typical for the variety235 Main shoot has reached 50% of the expected height typical for the variety236 Main shoot has reached 60% of the expected height typical for the variety237 Main shoot has reached 70% of the expected height typical for the variety238 Main shoot has reached 80% of the expected height typical for the variety239 Main shoot has reached the height typical for the variety24: Development of harvestable vegetative plant parts41 Lateral buds begin to develop2 Cauliflower heads begin to form;width of growing tip > 1 cm343 First sprouts tightly closed2 30% of the expected head diameter reached345 50% of the sprouts tightly closed2 50% of the expected head diameter reached346 60% of the sprouts tightly closed2 60% of the expected head diameter reached347 70% of the sprouts tightly closed2 70% of the expected head diameter reached348 80% of the sprouts tightly closed2 80% of the expected head diameter reached349 Sprouts below terminal bud tightly closed2 Typical size and form reached; head tightly closed35: Inflorescence emergence51 Main inflorescence visible between uppermost leaves2 Branches of inflorescence begin to elongate355 First individual flowers visible (still closed)59 First flower petals visible; flowers still closed6: Flowering60 First flowers open (sporadically)61 Beginning of flowering: 10% of flowers open62 20% of flowers open63 30% of flowers open64 40% of flowers open65 Full flowering: 50% of flowers open67 Flowering finishing: majority of petals fallen or dry69 End of flowering7: Development of fruit71 First fruits formed72 20% of fruits have reached typical size73 30% of fruits have reached typical size74 40% of fruits have reached typical size75 50% of fruits have reached typical size76 60% of fruits have reached typical size77 70% of fruits have reached typical size78 80% of fruits have reached typical size79 Fruits have reached typical size8: Ripening of fruit and seed81 Beginning of ripening: 10% of fruits ripe82 20% of fruits ripe83 30% of fruits ripe84 40% of fruits ripe85 50% of fruits ripe86 60% of fruits ripe87 70% of fruits ripe88 80% of fruits ripe89 Fully ripe: seeds on the whole plant of typical color and hard9: Senescence92 Leaves and shoots beginning to discolour95 50% of leaves yellow or dead97 Plants dead99 Harvested product (seeds)
1 For broccoli 2 For brussels sprout 3 For cauliflower and broccoli
References